Frank wankel



No. 620,553. Patented Feb. 28,1899.

F. WANKEL.

SHUTTER FASTENER.

(Application filed Dec. 21, 1898.)

(No Model.)

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FRANK \VANKEL, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO VILLIAIWIGEPPERT, OF SAME PLACE.

SHUTTER-FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 620,553, dated February28, 1899.

Application filed December 21, 1898. Serial No. 699,896. (No model.)

To all whom it may concern.-

Be it known that I, FRANK WANKEL, a citizen of the United States, andaresident of New York, (Brooklyn) county of Kings, and State of NewYork, have invented an Improved Shutter-Fastener, of which the followingis a specification.

This invention relates to a shutter-fastener which when slipped over thepintle of the shutter-hinge will at once become mounted in an operativeposition. Thus the fastener does not require any fitting or anyattaching means and may be readily applied to shutterjoints of theconventional construction.

In the accompanying drawings, Figure 1 is a perspective View of myimproved shutterfastener; Fig. 2, a rear view thereof; Fig. 3, a plan ofa hinge provided with my improved fastenerand showing the shutterclosed; Fig. 4, a similar view with the shutter open; Fig. 5, asectional end view of the fastener mounted upon the hinge and showingthe shutter closed, and Fig. 6 a similar view showing the shutter open.

The improved fastener is composed, essentially, of twopivotally-connected partsviz. a base-plate a and a bail b. Thebase-plate a is perforated, as at a, to be slipped over the pintle c ofthe shutter-hinge and to be supported upon the horizontal strap a ofsuch hinge. One edge of the plate a is rounded, while the opposite endis turned up to form a flange a At the sides lugs or bearings a are alsoturned up, which are so spaced with relation to the flange a thatnotches a are formed between them, which are adapted to receive and lockthe strap cl of the upper hinge eye or knuckle d. The bail b, pivotallyconnected to the bearings a at b, is of a curved shape in horizontalsection and free to swing over the curved edge of plate a. The bailtapers or increases in depth uniformly from both ends toward the center,the lower edge of the bail being rounded and tapering and provided atthe center, where it is of the greatest height, with a notch b adaptedto engage the strap 0'.

In use the shutter-fastener is mounted on the hinge-pin c and then theshutter is hung upon such pin so that the hinge-eye cl rests upon platea, while the upper hinge-strap d settles into one of the notches a.\Vhen the shutter is closed, Figs. 3 and 5, the bail 1) projectsoutwardly beyond the hinge and thea shutter remains unlocked. If theshutter is thrown open, by being revolved one hundred and eighty degreesit will, by the engagement of the parts d a, carry the fastener with it.Thus the lower curved and tapering edge of the bail will ride over arm 0and will be gradually swung up until the notch 19 arrives in verticalalinement with such arm, when the bail will drop and grasp the arm tosecurely lock the shutter in its open position, Figs. 4 and 6. To closethe shutter, the bail b is raised (dotted lines, Fig. 6) to liberate thearm 0, when the shutter may be swung inward, as usual.

A pair of small bulges or teats a may depend from plate a, which willembrace the arm 0 when the shutter is closed and thus aid somewhat inholding the shutter in its closed position.

The object of forming two notches a on the plate a is to adapt the samefastener to both the right and left shutter; but manifestly one notchonly will be operative on each fastener, while the other notch remainsinert.

What I claim is 1. A shutter-fastener, composed of a perforated notchedbase-plate, and of a notched bail pivotally connected to saidbase-plate, substantially as specified.

2. A shutter-fastener, composed of a perforated notched base-plate and abail pivoted thereto, and having a notched and tapering lower edge,substantially as specified.

3. A shutter-fastener, composed of a perforated base-plate havingaflanged edge and upwardly-turned lugs to form an intervening notch ornotches, and of a tapering notched bail pivoted to said lugs,substantially as specified.

4. A shutter-fastener, composed of a perforated notched base-platehaving depending teats, and of a notched tapering bail pivoted to saidbase-plate, substantially as specified.

5. A shutter-fastener, composed of a perforated base-plate adapted toengage the upper hinge-strap, and means secured to said base plate forengaging the lower hinge-strap when the shutter is open, substantiallyas specified.

FRANK WANKEL.

